作　　者： ; ; ;

机构地区： 中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室

出　　处： 《地理学报》 2003年第2期163-171,共9页

摘　　要： 通过构建山地垂直带谱数据结构,实现了垂直带谱数字化,增强了垂直带谱的可视化;提出了垂直带谱的三级体系:以基带区分一级带谱,以特征垂直带区分二级带谱,以垂直带组合结构、优势垂直带及垂直高度及宽度区分三级带谱;概括出山地垂直带谱的7种变化模式:同构模式、结构递减模式、突变模式、纬向递减模式、经向减升模式、阶梯递增模式和高原叠加模式;归纳出垂直带谱的5种生态类型:与自然地带相联系的顶极带谱、与主要山地相联系的基本带谱、与特殊地生态现象相联系的过渡/特殊带谱、与人类干扰相联系的扰动带谱,以及与强烈人类活动相联系的次生带谱。深入比较和分析垂直带信息图谱,可以揭示更多的地学信息。 This paper constructs a special data structure model for montane altitudinal belts (MABs) and thereby realizes their digitalization and visualization. A three-level hierarchy is drawn for MABs classification: the first level is 'spectra series' with the same base belt. A total of 31 basic spectra series can be generalized for China; the second level is 'spectra group' with the same characteristic belts; the third level is 'spectrum type' with the same structure of MABs. Seven models are identified for the spatial variation of MABs: (1) identical structure model; (2) structure-thinning model; (3) mutation model; (4) latitudinal descending model; (5) longitudinal thinning-rising model; (6) step-ascending model; and (7) superimposed model. Five ecological types of MABs are also distinguished as follows: (1) climax MABs related with regional climate; (2) standard MABs related with main mountains; (3) special/transitional MABs related with special geoecological phenomenon; (4) disturbed MABs related with human disturbances; and (5) secondary mabs related with intensive human activities. Digital comparison and analysis of mabs could reveal more geographical information than ever before.

关 键 词： 山地垂直带信息图谱 地学信息图谱 中国 人类活动 同构模式 突变模式

领　　域： [天文地球]